Freeport-McMoRan Inc.
MX ˙ BMV ˙ US35671D8570
SecurityMX:FCX / Freeport-McMoRan Inc.
InstitutionMountaineer Partners Management, LLC
Latest Disclosed Ownership240,973 shares
Latest Disclosed Value $ 14,164,393
Mountaineer Partners Management, LLC reports 9.52% decrease in ownership of FCX / Freeport-McMoRan Inc.

On May 15, 2026 - Mountaineer Partners Management, LLC filed a 13F-HR form disclosing ownership of 240,973 shares of Freeport-McMoRan Inc. (MX:FCX) valued at $14,164,393 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 266,327 shares of Freeport-McMoRan Inc.. This represents a change in shares of -9.52% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F FREEPORT MCMORAN CL B 35671D857 240,973 -25,354 -9.52 14,164 4.72 5.6703
2026-02-13 2025-12-31 13F FREEPORT-MCMORAN CL B 35671D857 266,327 -27,722 -9.43 13,527 17.29 7.5685
2025-11-14 2025-09-30 13F FREEPORT-MCMORAN CL B 35671D857 294,049 41,088 16.24 11,533 5.17 6.7071
2025-08-14 2025-06-30 13F FREEPORT-MCMORAN CL B 35671D857 252,961 2,403 0.96 10,966 15.59 7.2479
2025-05-15 2025-03-31 13F FREEPORT-MCMORAN CL B 35671D857 250,558 3,718 1.51 9,486 0.93 9.0774
2025-02-14 2024-12-31 13F FREEPORT-MCMORAN CL B 35671D857 246,840 7,795 3.26 9,400 -21.24 6.8831
2024-11-15 2024-09-30 13F/A-1 FREEPORT-MCMORAN CL B 35671D857 239,045 -6,099 -2.49 11,933 0.17 7.4407
2024-11-14 2024-09-30 13F FREEPORT-MCMORAN CL B 35671D857 11,933,126 11,687,982 239 2.5734
2024-08-14 2024-06-30 13F FREEPORT-MCMORAN CL B 35671D857 245,144 -30,343 -11.01 11,914 -8.03 6.1994
2024-05-15 2024-03-31 13F FREEPORT-MCMORAN CL B 35671D857 275,487 -15,433 -5.30 12,953 4.59 5.9801
2024-02-14 2023-12-31 13F FREEPORT-MCMORAN CL B 35671D857 290,920 40,459 16.15 12,384 32.61 6.2941
2023-11-14 2023-09-30 13F FREEPORT-MCMORAN CL B 35671D857 250,461 2,585 1.04 9,340 -5.81 5.9860
2023-08-14 2023-06-30 13F FREEPORT-MCMORAN CL B 35671D857 247,876 383 0.15 9,915 -2.06 5.4694
2023-05-15 2023-03-31 13F FREEPORT-MCMORAN CL B 35671D857 247,493 35,558 16.78 10,125 25.72 7.3569
2023-02-14 2022-12-31 13F FREEPORT-MCMORAN CL B 35671D857 211,935 211,935 8,054 7.6463
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.